The Mountain View, California-based search monster has made its playable Pac-Man logo available permanently following tremendous interest from users. Google said the sensational response didn’t surprise them, although the company admitted to an “overwhelming” interest.

Marissa Mayer, Google’s vice president of search products and user experience, announced Monday afternoon in a company blog post aptly titled “PAC-MAN rules!” that anyone can now play Namco’s Pac-Man inside the Google logo simply by navigating to a fixed URL:

We’ve been overwhelmed — but not surprised :) — by the success of our 30th anniversary PAC-MAN doodle. Due to popular demand, we’re making the game permanently available at www.google.com/pacman.

Google took the blogosphere by surprise this past Friday by dressing up their logo with the Pac-Man themed graphic to celebrate the 30th Anniversary of Namco’s legendary game. Called Google Doodles, such logo tweaks are a norm for the search firm, usually in celebration of local holidays or paying tribute to history figures. This time around, Googlers have outdone themselves by allowing people to play a Pac-Man level inside the logo itself, complete with the original graphics, ghosts, and Pac-Man.

According to one estimate, the Google Pac-Man logo has eaten up 4,819,352 hours of time, resulting in a $120 million dollar tally assuming an average $25 per hour per Google user cost. In other words, this particular Google Doodle cost business 4.8 million in lost work hours.